monitor/model.py

   1 #!/usr/bin/python
   2
   3 from monitor import database
   4
   5 from monitor.wrapper import plc, plccache
   6 from monitor.wrapper import mailer
   7 import time
   8
   9 from monitor.const import *
  10 from monitor import util
  11 from monitor import config
  12
  13 import time
  14 from datetime import datetime, timedelta
  15 import re
  16
  17 def gethostlist(hostlist_file):
  18         return util.file.getListFromFile(hostlist_file)
  19
  20 def array_to_priority_map(array):
  21         """ Create a mapping where each entry of array is given a priority equal
  22         to its position in the array.  This is useful for subsequent use in the
  23         cmpMap() function."""
  24         map = {}
  25         count = 0
  26         for i in array:
  27                 map[i] = count
  28                 count += 1
  29         return map
  30
  31 def cmpValMap(v1, v2, map):
  32         if v1 in map and v2 in map and map[v1] < map[v2]:
  33                 return 1
  34         elif v1 in map and v2 in map and map[v1] > map[v2]:
  35                 return -1
  36         elif v1 in map and v2 in map:
  37                 return 0
  38         else:
  39                 raise Exception("No index %s or %s in map" % (v1, v2))
  40
  41 def cmpCategoryVal(v1, v2):
  42         # Terrible hack to manage migration to no more 'ALPHA' states.
  43         if v1 == 'ALPHA': v1 = "PROD"
  44         if v2 == 'ALPHA': v2 = "PROD"
  45         #map = array_to_priority_map([ None, 'PROD', 'ALPHA', 'OLDBOOTCD', 'UNKNOWN', 'FORCED', 'ERROR', ])
  46         map = array_to_priority_map([ None, 'ALPHA', 'PROD', 'OLDBOOTCD', 'UNKNOWN', 'FORCED', 'ERROR', ])
  47         return cmpValMap(v1,v2,map)
  48
  49
  50 class PCU:
  51         def __init__(self, hostname):
  52                 self.hostname = hostname
  53
  54         def reboot(self):
  55                 return True
  56         def available(self):
  57                 return True
  58         def previous_attempt(self):
  59                 return True
  60         def setValidMapping(self):
  61                 pass
  62
  63 class Penalty:
  64         def __init__(self, key, valuepattern, action):
  65                 pass
  66
  67 class PenaltyMap:
  68         def __init__(self):
  69                 pass
  70
  71         # connect one penalty to another, in a FSM diagram.  After one
  72         #       condition/penalty is applied, move to the next phase.
  73
  74
  75 class RT(object):
  76         def __init__(self, ticket_id = None):
  77                 self.ticket_id = ticket_id
  78                 if self.ticket_id:
  79                         print "getting ticket status",
  80                         self.status = mailer.getTicketStatus(self.ticket_id)
  81                         print self.status
  82
  83         def setTicketStatus(self, status):
  84                 mailer.setTicketStatus(self.ticket_id, status)
  85                 self.status = mailer.getTicketStatus(self.ticket_id)
  86                 return True
  87
  88         def getTicketStatus(self):
  89                 if not self.status:
  90                         self.status = mailer.getTicketStatus(self.ticket_id)
  91                 return self.status
  92
  93         def closeTicket(self):
  94                 mailer.closeTicketViaRT(self.ticket_id, "Ticket CLOSED automatically by SiteAssist.")
  95
  96         def email(self, subject, body, to):
  97                 self.ticket_id = mailer.emailViaRT(subject, body, to, self.ticket_id)
  98                 return self.ticket_id
  99
 100 class Message(object):
 101         def __init__(self, subject, message, via_rt=True, ticket_id=None, **kwargs):
 102                 self.via_rt = via_rt
 103                 self.subject = subject
 104                 self.message = message
 105                 self.rt = RT(ticket_id)
 106
 107         def send(self, to):
 108                 if self.via_rt:
 109                         return self.rt.email(self.subject, self.message, to)
 110                 else:
 111                         return mailer.email(self.subject, self.message, to)
 112
 113 class Recent(object):
 114         def __init__(self, withintime):
 115                 self.withintime = withintime
 116
 117                 try:
 118                         self.time = self.__getattribute__('time')
 119                 except:
 120                         self.time = time.time()- 7*24*60*60
 121
 122                 #self.time = time.time()
 123                 #self.action_taken = False
 124
 125         def isRecent(self):
 126                 if self.time + self.withintime < time.time():
 127                         self.action_taken = False
 128
 129                 if self.time + self.withintime > time.time() and self.action_taken:
 130                         return True
 131                 else:
 132                         return False
 133
 134         def unsetRecent(self):
 135                 self.action_taken = False
 136                 self.time = time.time()
 137                 return True
 138
 139         def setRecent(self):
 140                 self.action_taken = True
 141                 self.time = time.time()
 142                 return True
 143
 144 class PersistFlags(Recent):
 145         def __new__(typ, id, *args, **kwargs):
 146                 if 'db' in kwargs:
 147                         db = kwargs['db']
 148                         del kwargs['db']
 149                 else:
 150                         db = "persistflags"
 151
 152                 try:
 153                         pm = database.dbLoad(db)
 154                 except:
 155                         database.dbDump(db, {})
 156                         pm = database.dbLoad(db)
 157                 #print pm
 158                 if id in pm:
 159                         obj = pm[id]
 160                 else:
 161                         obj = super(PersistFlags, typ).__new__(typ, *args, **kwargs)
 162                         for key in kwargs.keys():
 163                                 obj.__setattr__(key, kwargs[key])
 164                         obj.time = time.time()
 165                         obj.action_taken = False
 166
 167                 obj.db = db
 168                 return obj
 169
 170         def __init__(self, id, withintime, **kwargs):
 171                 self.id = id
 172                 Recent.__init__(self, withintime)
 173
 174         def save(self):
 175                 pm = database.dbLoad(self.db)
 176                 pm[self.id] = self
 177                 database.dbDump(self.db, pm)
 178
 179         def resetFlag(self, name):
 180                 self.__setattr__(name, False)
 181
 182         def setFlag(self, name):
 183                 self.__setattr__(name, True)
 184
 185         def getFlag(self, name):
 186                 try:
 187                         return self.__getattribute__(name)
 188                 except:
 189                         self.__setattr__(name, False)
 190                         return False
 191
 192         def resetRecentFlag(self, name):
 193                 self.resetFlag(name)
 194                 self.unsetRecent()
 195
 196         def setRecentFlag(self, name):
 197                 self.setFlag(name)
 198                 self.setRecent()
 199
 200         def getRecentFlag(self, name):
 201                 # if recent and flag set -> true
 202                 # else false
 203                 try:
 204                         return self.isRecent() & self.__getattribute__(name)
 205                 except:
 206                         self.__setattr__(name, False)
 207                         return False
 208
 209         def checkattr(self, name):
 210                 try:
 211                         x = self.__getattribute__(name)
 212                         return True
 213                 except:
 214                         return False
 215
 216
 217 class PersistMessage(Message):
 218         def __new__(typ, id, subject, message, via_rt, **kwargs):
 219                 if 'db' in kwargs:
 220                         db = kwargs['db']
 221                 else:
 222                         db = "persistmessages"
 223
 224                 try:
 225                         pm = database.dbLoad(db)
 226                 except:
 227                         database.dbDump(db, {})
 228                         pm = database.dbLoad(db)
 229
 230                 #print pm
 231                 if id in pm:
 232                         #print "Using existing object"
 233                         obj = pm[id]
 234                 else:
 235                         #print "creating new object"
 236                         obj = super(PersistMessage, typ).__new__(typ, [id, subject, message, via_rt], **kwargs)
 237                         obj.id = id
 238                         obj.actiontracker = Recent(1*60*60*24)
 239                         obj.ticket_id = None
 240
 241                 if 'ticket_id' in kwargs and kwargs['ticket_id'] is not None:
 242                         obj.ticket_id = kwargs['ticket_id']
 243
 244                 obj.db = db
 245                 return obj
 246
 247         def __init__(self, id, subject, message, via_rt=True, **kwargs):
 248                 print "initializing object: %s" % self.ticket_id
 249                 self.id = id
 250                 Message.__init__(self, subject, message, via_rt, self.ticket_id)
 251
 252         def reset(self):
 253                 self.actiontracker.unsetRecent()
 254
 255         def save(self):
 256                 pm = database.dbLoad(self.db)
 257                 pm[self.id] = self
 258                 database.dbDump(self.db, pm)
 259
 260         def send(self, to):
 261                 if not self.actiontracker.isRecent():
 262                         self.ticket_id = Message.send(self, to)
 263                         self.actiontracker.setRecent()
 264                         self.save()
 265                 else:
 266                         # NOTE: only send a new message every week, regardless.
 267                         # NOTE: can cause thank-you messages to be lost, for instance when node comes back online within window.
 268                         print "Not sending to host b/c not within window of %s days" % (self.actiontracker.withintime // (60*60*24))
 269
 270 class MonitorMessage(object):
 271         def __new__(typ, id, *args, **kwargs):
 272                 if 'db' in kwargs:
 273                         db = kwargs['db']
 274                 else:
 275                         db = "monitormessages"
 276
 277                 try:
 278                         if 'reset' in kwargs and kwargs['reset'] == True:
 279                                 database.dbDump(db, {})
 280                         pm = database.dbLoad(db)
 281                 except:
 282                         database.dbDump(db, {})
 283                         pm = database.dbLoad(db)
 284
 285                 #print pm
 286                 if id in pm:
 287                         print "Using existing object"
 288                         obj = pm[id]
 289                 else:
 290                         print "creating new object"
 291                         obj = super(object, typ).__new__(typ, id, *args, **kwargs)
 292                         obj.id = id
 293                         obj.sp = PersistSitePenalty(id, 0)
 294
 295                 obj.db = db
 296                 return obj
 297
 298         def __init__(self, id, message):
 299                 pass
 300
 301
 302 class SitePenalty(object):
 303         penalty_map = []
 304         penalty_map.append( { 'name': 'noop',                   'enable'   : lambda host: None,
 305                                                                                                         'disable'  : lambda host: None } )
 306         penalty_map.append( { 'name': 'nocreate',               'enable'   : lambda host: plc.removeSliceCreation(host),
 307                                                                                                         'disable'  : lambda host: plc.enableSliceCreation(host) } )
 308         penalty_map.append( { 'name': 'suspendslices',  'enable'   : lambda host: plc.suspendSlices(host),
 309                                                                                                         'disable'  : lambda host: plc.enableSlices(host) } )
 310
 311         #def __init__(self, index=0, **kwargs):
 312         #       self.index = index
 313
 314         def get_penalties(self):
 315                 # TODO: get penalties actually applied to a node from PLC DB.
 316                 return [ n['name'] for n in SitePenalty.penalty_map ]
 317
 318         def increase(self):
 319                 self.index = self.index + 1
 320                 if self.index > len(SitePenalty.penalty_map)-1: self.index = len(SitePenalty.penalty_map)-1
 321                 return True
 322
 323         def decrease(self):
 324                 self.index = self.index - 1
 325                 if self.index < 0: self.index = 0
 326                 return True
 327
 328         def apply(self, host):
 329
 330                 for i in range(len(SitePenalty.penalty_map)-1,self.index,-1):
 331                         print "\tdisabling %s on %s" % (SitePenalty.penalty_map[i]['name'], host)
 332                         SitePenalty.penalty_map[i]['disable'](host)
 333
 334                 for i in range(0,self.index+1):
 335                         print "\tapplying %s on %s" % (SitePenalty.penalty_map[i]['name'], host)
 336                         SitePenalty.penalty_map[i]['enable'](host)
 337
 338                 return
 339
 340
 341
 342 class PersistSitePenalty(SitePenalty):
 343         def __new__(typ, id, index, **kwargs):
 344                 if 'db' in kwargs:
 345                         db = kwargs['db']
 346                 else:
 347                         db = "persistpenalties"
 348
 349                 try:
 350                         if 'reset' in kwargs and kwargs['reset'] == True:
 351                                 database.dbDump(db, {})
 352                         pm = database.dbLoad(db)
 353                 except:
 354                         database.dbDump(db, {})
 355                         pm = database.dbLoad(db)
 356
 357                 #print pm
 358                 if id in pm:
 359                         print "Using existing object"
 360                         obj = pm[id]
 361                 else:
 362                         print "creating new object"
 363                         obj = super(PersistSitePenalty, typ).__new__(typ, [index], **kwargs)
 364                         obj.id = id
 365                         obj.index = index
 366
 367                 obj.db = db
 368                 return obj
 369
 370         def __init__(self, id, index, **kwargs):
 371                 self.id = id
 372
 373         def save(self):
 374                 pm = database.dbLoad(self.db)
 375                 pm[self.id] = self
 376                 database.dbDump(self.db, pm)
 377
 378
 379 class Target:
 380         """
 381                 Each host has a target set of attributes.  Some may be set manually,
 382                 or others are set globally for the preferred target.
 383
 384                 For instance:
 385                         All nodes in the Alpha or Beta group would have constraints like:
 386                                 [ { 'state' : 'BOOT', 'kernel' : '2.6.22' } ]
 387         """
 388         def __init__(self, constraints):
 389                 self.constraints = constraints
 390
 391         def verify(self, data):
 392                 """
 393                         self.constraints is a list of key, value pairs.
 394                         # [ {... : ...}==AND , ... , ... , ] == OR
 395                 """
 396                 con_or_true = False
 397                 for con in self.constraints:
 398                         #print "con: %s" % con
 399                         con_and_true = True
 400                         for key in con.keys():
 401                                 #print "looking at key: %s" % key
 402                                 if key in data:
 403                                         #print "%s %s" % (con[key], data[key])
 404                                         con_and_true = con_and_true & (con[key] in data[key])
 405                                 elif key not in data:
 406                                         print "missing key %s" % key
 407                                         con_and_true = False
 408
 409                         con_or_true = con_or_true | con_and_true
 410
 411                 return con_or_true
 412
 413 class Record(object):
 414
 415         def __init__(self, hostname, data):
 416                 self.hostname = hostname
 417                 self.data = data
 418                 self.plcdb_hn2lb = plccache.plcdb_hn2lb
 419                 self.loginbase = self.plcdb_hn2lb[self.hostname]
 420                 return
 421
 422
 423         def stageIswaitforever(self):
 424                 if 'waitforever' in self.data['stage']:
 425                         return True
 426                 else:
 427                         return False
 428
 429         def severity(self):
 430                 category = self.data['category']
 431                 prev_category = self.data['prev_category']
 432                 #print "SEVERITY: ", category, prev_category
 433                 val = cmpCategoryVal(category, prev_category)
 434                 return val
 435
 436         def improved(self):
 437                 return self.severity() > 0
 438
 439         def end_record(self):
 440                 return node_end_record(self.hostname)
 441
 442         def reset_stage(self):
 443                 self.data['stage'] = 'findbad'
 444                 return True
 445
 446         def getCategory(self):
 447                 return self.data['category'].lower()
 448
 449         def getState(self):
 450                 return self.data['state'].lower()
 451
 452         def getDaysDown(cls, diag_record):
 453                 daysdown = -1
 454                 if diag_record['comonstats']['uptime'] != "null" and diag_record['comonstats']['uptime'] != "-1":
 455                         daysdown = - int(float(diag_record['comonstats']['uptime'])) // (60*60*24)
 456                 #elif diag_record['comonstats']['sshstatus'] != "null":
 457                 #       daysdown = int(diag_record['comonstats']['sshstatus']) // (60*60*24)
 458                 #elif diag_record['comonstats']['lastcotop'] != "null":
 459                 #       daysdown = int(diag_record['comonstats']['lastcotop']) // (60*60*24)
 460                 else:
 461                         now = time.time()
 462                         last_contact = diag_record['plcnode']['last_contact']
 463                         if last_contact == None:
 464                                 # the node has never been up, so give it a break
 465                                 daysdown = -1
 466                         else:
 467                                 diff = now - last_contact
 468                                 daysdown = diff // (60*60*24)
 469                 return daysdown
 470         getDaysDown = classmethod(getDaysDown)
 471
 472         def getStrDaysDown(cls, diag_record):
 473                 daysdown = "unknown"
 474                 last_contact = diag_record['plcnode']['last_contact']
 475                 date_created = diag_record['plcnode']['date_created']
 476
 477                 if      diag_record['comonstats']['uptime'] != "null" and \
 478                         diag_record['comonstats']['uptime'] != "-1":
 479                         daysdown = int(float(diag_record['comonstats']['uptime'])) // (60*60*24)
 480                         daysdown = "%d days up" % daysdown
 481
 482                 elif last_contact is None:
 483                         if date_created is not None:
 484                                 now = time.time()
 485                                 diff = now - date_created
 486                                 daysdown = diff // (60*60*24)
 487                                 daysdown = "Never contacted PLC, created %s days ago" % daysdown
 488                         else:
 489                                 daysdown = "Never contacted PLC"
 490                 else:
 491                         now = time.time()
 492                         diff = now - last_contact
 493                         daysdown = diff // (60*60*24)
 494                         daysdown = "%s days down" % daysdown
 495                 return daysdown
 496         getStrDaysDown = classmethod(getStrDaysDown)
 497
 498         def getSendEmailFlag(self):
 499                 if not config.mail:
 500                         return False
 501
 502                 # resend if open & created longer than 30 days ago.
 503                 if  'rt' in self.data and \
 504                         'Status' in self.data['rt'] and \
 505                         "open" in self.data['rt']['Status'] and \
 506                         self.data['rt']['Created'] > int(time.time() - 60*60*24*30):
 507                         # if created-time is greater than the thirty days ago from the current time
 508                         return False
 509
 510                 return True
 511
 512         def getMostRecentStage(self):
 513                 lastact = self.data['last_action_record']
 514                 return lastact.stage
 515
 516         def getMostRecentTime(self):
 517                 lastact = self.data['last_action_record']
 518                 return lastact.date_action_taken
 519
 520         def takeAction(self, index=0):
 521                 pp = PersistSitePenalty(self.hostname, 0, db='persistpenalty_hostnames')
 522                 if 'improvement' in self.data['stage'] or self.improved() or \
 523                         'monitor-end-record' in self.data['stage']:
 524                         print "takeAction: decreasing penalty for %s"%self.hostname
 525                         pp.decrease()
 526                         pp.decrease()
 527                 else:
 528                         print "takeAction: increasing penalty for %s"%self.hostname
 529                         pp.increase()
 530                 pp.index = index
 531                 pp.apply(self.hostname)
 532                 pp.save()
 533
 534         def _format_diaginfo(self):
 535                 info = self.data['info']
 536                 print "FORMAT : STAGE: ", self.data['stage']
 537                 if self.data['stage'] == 'monitor-end-record':
 538                         if info[2] == "ALPHA": info = (info[0], info[1], "PROD")
 539                         hlist = "    %s went from '%s' to '%s'\n" % (info[0], info[1], info[2])
 540                 else:
 541                         hlist = "    %s %s - %s\n" % (info[0], info[2], info[1]) #(node,ver,daysdn)
 542                 return hlist
 543         def saveAction(self):
 544                 if 'save_act_all' in self.data and self.data['save_act_all'] == True:
 545                         return True
 546                 else:
 547                         return False
 548
 549         def getMessage(self, ticket_id=None):
 550                 self.data['args']['hostname'] = self.hostname
 551                 self.data['args']['loginbase'] = self.loginbase
 552                 self.data['args']['hostname_list'] = self._format_diaginfo()
 553                 #print self.data['message']
 554                 if self.data['message']:
 555                         message = PersistMessage(self.hostname,
 556                                                                  self.data['message'][0] % self.data['args'],
 557                                                                  self.data['message'][1] % self.data['args'],
 558                                                                  True, db='monitor_persistmessages',
 559                                                                  ticket_id=ticket_id)
 560                         if self.data['stage'] == "improvement":
 561                                 message.reset()
 562                         return message
 563                 else:
 564                         return None
 565
 566         def getContacts(self):
 567                 roles = self.data['email']
 568
 569                 if not config.mail and not config.debug and config.bcc:
 570                         roles = ADMIN
 571                 if config.mail and config.debug:
 572                         roles = ADMIN
 573
 574                 # build targets
 575                 contacts = []
 576                 if ADMIN & roles:
 577                         contacts += [config.email]
 578                 if TECH & roles:
 579                         #contacts += [TECHEMAIL % self.loginbase]
 580                         contacts += plc.getTechEmails(self.loginbase)
 581                 if PI & roles:
 582                         #contacts += [PIEMAIL % self.loginbase]
 583                         contacts += plc.getSliceUserEmails(self.loginbase)
 584                 if USER & roles:
 585                         contacts += plc.getSliceUserEmails(self.loginbase)
 586                         slices = plc.slices(self.loginbase)
 587                         if len(slices) >= 1:
 588                                 #for slice in slices:
 589                                 #       contacts += [SLICEMAIL % slice]
 590                                 print "SLIC: %20s : %d slices" % (self.loginbase, len(slices))
 591                         else:
 592                                 print "SLIC: %20s : 0 slices" % self.loginbase
 593
 594                 return contacts
 595
 596
 597 class NodeRecord:
 598         def __init__(self, hostname, target):
 599                 self.hostname = hostname
 600                 self.ticket = None
 601                 self.target = target
 602
 603
 604 class MonRecord(object):
 605         def __init__(self, data):
 606                 self.keys = data.keys()
 607                 self.keys.sort()
 608                 self.__dict__.update(data)
 609                 return
 610
 611         def get(self):
 612                 ret= {}
 613                 for k in self.keys:
 614                         ret[k] = self.__dict__[k]
 615                 return ret
 616
 617         def __repr__(self):
 618                 str = ""
 619                 str += self.host + "\n"
 620                 for k in self.keys:
 621                         if "message" in k or "msg" in k:
 622                                 continue
 623                         if 'time' in k:
 624                                 s_time=time.strftime("%Y/%m/%d %H:%M:%S",
 625                                                         time.gmtime(self.__dict__[k]))
 626                                 str += "\t'%s' : %s\n" % (k, s_time)
 627                         else:
 628                                 str += "\t'%s' : %s\n" % (k, self.__dict__[k])
 629                 str += "\t--"
 630                 return str
 631
 632         def delField(self, field):
 633                 if field in self.__dict__:
 634                         del self.__dict__[field]
 635
 636                 if field in self.keys:
 637                         for i in range(0,len(self.keys)):
 638                                 if self.keys[i] == field:
 639                                         del self.keys[i]
 640                                         break
 641
 642 class Action(MonRecord):
 643         def __init__(self, host, data):
 644                 self.host = host
 645                 MonRecord.__init__(self, data)
 646                 return
 647
 648         def deltaDays(self, delta):
 649                 t = datetime.fromtimestamp(self.__dict__['time'])
 650                 d = t + timedelta(delta)
 651                 self.__dict__['time'] = time.mktime(d.timetuple())
 652
 653 def node_end_record(node):
 654         act_all = database.dbLoad("act_all")
 655         if node not in act_all:
 656                 del act_all
 657                 return False
 658
 659         if len(act_all[node]) == 0:
 660                 del act_all
 661                 return False
 662
 663         pm = database.dbLoad("monitor_persistmessages")
 664         if node not in pm:
 665                 del pm
 666                 return False
 667         else:
 668                 print "deleting node record"
 669                 del pm[node]
 670                 database.dbDump("monitor_persistmessages", pm)
 671
 672         a = Action(node, act_all[node][0])
 673         a.delField('rt')
 674         a.delField('found_rt_ticket')
 675         a.delField('second-mail-at-oneweek')
 676         a.delField('second-mail-at-twoweeks')
 677         a.delField('first-found')
 678         rec = a.get()
 679         rec['action'] = ["close_rt"]
 680         rec['category'] = "ALPHA"       # assume that it's up...
 681         rec['stage'] = "monitor-end-record"
 682         rec['ticket_id'] = None
 683         rec['time'] = time.time() - 7*60*60*24
 684         act_all[node].insert(0,rec)
 685         database.dbDump("act_all", act_all)
 686         del act_all
 687         return True
 688
 689
 690 class LogRoll:
 691         def __init__(self, list=None):
 692                 self.list = list
 693                 if self.list == None:
 694                         self.list = {}
 695
 696         def find(self, host, filter, timerange):
 697                 if host not in self.list:
 698                         return None
 699
 700                 host_log_list = self.list[host]
 701                 for log in host_log_list:
 702                         for key in filter.keys():
 703                                 #print "searching key %s in log keys" % key
 704                                 if key in log.keys:
 705                                         #print "%s in log.keys" % key
 706                                         cmp = re.compile(filter[key])
 707                                         res = cmp.search(log.__getattribute__(key))
 708                                         if res != None:
 709                                                 #print "found match in log: %s  %s ~=~ %s" % (log, key, filter[key])
 710                                                 if log.time > time.time() - timerange:
 711                                                         print "returning log b/c it occured within time."
 712                                                         return log
 713                 return None
 714
 715
 716         def get(self, host):
 717                 if host in self.list:
 718                         return self.list[host][0]
 719                 else:
 720                         return None
 721
 722         def add(self, log):
 723                 if log.host not in self.list:
 724                         self.list[log.host] = []
 725
 726                 self.list[log.host].insert(0,log)
 727
 728 class Log(MonRecord):
 729         def __init__(self, host, data):
 730                 self.host = host
 731                 MonRecord.__init__(self, data)
 732                 return
 733
 734         def __repr__(self):
 735                 str = " "
 736                 str += self.host + " : { "
 737                 for k in self.keys:
 738                         if "message" in k or "msg" in k:
 739                                 continue
 740                         if 'time' in k:
 741                                 s_time=time.strftime("%Y/%m/%d %H:%M:%S",
 742                                                         time.gmtime(self.__dict__[k]))
 743                                 #str += " '%s' : %s, " % (k, s_time)
 744                         elif 'action' in k:
 745                                 str += "'%s' : %s, " % (k, self.__dict__[k])
 746                 str += "}"
 747                 return str
 748
 749
 750 class Diagnose(MonRecord):
 751         def __init__(self, host):
 752                 self.host = host
 753                 MonRecord.__init__(self, data)
 754                 return
 755
 756
 757
 758 if __name__ == "__main__":
 759         #r = RT()
 760         #r.email("test", "body of test message", ['database@cs.princeton.edu'])
 761         #from emailTxt import mailtxt
 762         print "loaded"
 763         #database.dbDump("persistmessages", {});
 764         #args = {'url_list': 'http://www.planet-lab.org/bootcds/planet1.usb\n','hostname': 'planet1','hostname_list': ' blahblah -  days down\n'}
 765         #m = PersistMessage("blue", "test 1", mailtxt.newdown_one[1] % args, True)
 766         #m.send(['soltesz@cs.utk.edu'])
 767         #m = PersistMessage("blue", "test 1 - part 2", mailtxt.newalphacd_one[1] % args, True)
 768         # TRICK timer to thinking some time has passed.
 769         #m.actiontracker.time = time.time() - 6*60*60*24
 770         #m.send(['soltesz@cs.utk.edu'])